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Thereafter the network equipments' update in HG servers racks of the network 188.165.12/24 we had interesting logs showing an old problem on some servers happening sometimes on this network.
We're trying to fix it.
Update(s):
Date: 2011-03-02 10:56:18 UTC And in HSRP it works which proves the bug between
the 2 technos: GLBP and VPC
Everything is fixed. Sorry again for the cut off.
Date: 2011-03-02 10:54:36 UTC There is an incompatibility between the GLBP on the 6500
(SXI5) and the FEX configuration in vPC (5.0.2.N2.1).
We move to HSRP.
Date: 2011-03-01 19:55:06 UTC Whatever, bugs are the same!
We reboot and that would work!
State is Active
Active is local
Standby is 188.165.12.252, priority 100 (expires in 8.736 sec)
Group members:
0064.403a.f9c0 (188.165.12.253) local
aca0.160b.bdc0 (188.165.12.252) authenticated
There are 2 forwarders (1 active)
Forwarder 1
State is Active
MAC address is 0007.b400.0a01 (default)
Forwarder 2
State is Listen
MAC address is 0007.b400.0a02 (learnt)
Date: 2011-03-01 19:21:09 UTC The reboot of one out of 2 N5 has fixed the problem ... !!!!!!!!!!!!!!!!
GLBP works now on 2 routers.
this means that one out of 2 N5 which manages the double attach prevents the communication with its router.
I don't even know what to say
Date: 2011-03-01 18:53:20 UTC We replaced the GLBP by the HSRP and the problem seems fixed.
The problem is that 2 routers managing the network 188.165.12/24 enables the GLBP (this is normal) but with the same MAC and without taking into account the neighbour!
router 1 # sh glbp
State is Active
Active is local
Standby is unknown
Group members:
XXXX.XXXX.XXX1 (XXX.XXX.XXX.XX1) local
There is 1 forwarder (1 active)
Forwarder 1
State is Active
MAC address is 0007.b400.0101 (default)
router 2 # sh glbp
State is Active
Active is local
Standby is unknown
Group members:
XXXX.XXXX.XXX2 (XXX.XXX.XXX.XX2) local
There is 1 forwarder (1 active)
Forwarder 1
State is Active
MAC address is 0007.b400.0101 (default)
Date: 2011-03-01 18:48:11 UTC We found the origin of this problem.